Alternate NTP: Add search token to omnibox

chrome/browser/ui/cocoa/location_bar/search_token_decoration.mm

Index: chrome/browser/ui/cocoa/location_bar/search_token_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/search_token_decoration.mm b/chrome/browser/ui/cocoa/location_bar/search_token_decoration.mm
new file mode 100644
index 0000000000000000000000000000000000000000..9a34c8627998427ca3ce8aebfce2a90972e0fd8d
--- /dev/null
+++ b/chrome/browser/ui/cocoa/location_bar/search_token_decoration.mm
@@ -0,0 +1,52 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "chrome/browser/ui/cocoa/location_bar/search_token_decoration.h"
+
+#import "chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h"
+#include "grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+SearchTokenDecoration::SearchTokenDecoration() {
+}
+
+SearchTokenDecoration::~SearchTokenDecoration() {
+}
+
+void SearchTokenDecoration::SetSearchProviderName(
+    const string16& search_provider_name) {
+  if (search_provider_name_ == search_provider_name)
+    return;
+  search_provider_name_ = search_provider_name;
+
+  NSDictionary* attributes = [NSDictionary dictionaryWithObjectsAndKeys:
+      OmniboxViewMac::GetFieldFont(), NSFontAttributeName,
+      OmniboxViewMac::SuggestTextColor(), NSForegroundColorAttributeName,
+      nil];
+  NSString* string = l10n_util::GetNSStringF(IDS_OMNIBOX_SEARCH_TOKEN_TEXT,
+                                             search_provider_name);
+  search_provider_attributed_string_.reset([[NSAttributedString alloc]
+      initWithString:string
+          attributes:attributes]);
+}
+
+void SearchTokenDecoration::DrawInFrame(NSRect frame, NSView* control_view) {
+  NSRect text_rect = NSInsetRect(frame, 0, kTextYInset);
+  [search_provider_attributed_string_ drawInRect:text_rect];
+}
+
+CGFloat SearchTokenDecoration::GetWidthForSpace(CGFloat width,
+                                                CGFloat text_width) {
+  // Padding between the control's text and the search token.
+  const CGFloat kAutoCollapsePadding = 20.0;
+
+  // Collapse if the search token would reduce the space remaining for the
+  // omnibox text.
+  CGFloat desired_width = [search_provider_attributed_string_ size].width;
+  CGFloat remaining_width = width - desired_width - kAutoCollapsePadding;
+  if (remaining_width < text_width)
+    return kOmittedWidth;
+
+  return desired_width;
+}